Methods for Preventing and Removing White Rust on Galvanized Coatings

When a layer of condensed water adhering to the surface of a galvanized coating reacts with oxygen, carbon dioxide, hydrogen sulfide, sulfur dioxide, chemical compounds, soot particles, dust, and other chemical gases, it transforms into a corrosive aqueous solution that attaches to the surface of the zinc layer, forming an electrolyte. This electrolyte then undergoes electrochemical corrosion with the zinc layer, which has poor chemical stability, resulting in the production of a powdery corrosion product known as "white rust".